1998 chevy 454 timing procedure. 4L-454ci-V8-MARK-IV Engine Torque Specs.

Raised Camshafts, Steel, Big Block, Chevy, Natural, Each Part Number: JES-CVR-32511 Not Yet Reviewed Jan 20, 2014 · How to set timing with timing advance connector disconnected chevy K1500 truck Jan 22, 2024 · These specifications provide a glimpse into the power and capabilities of the 1995 Chevy 454 engine. 1998 Chevy Silverado 3500 7. I have a 97 chevy suburban, 7. 1 : 1 Aluminum heads 077 rect Hyd Roller Voodoo 60212 Dur. Jump to Latest Since 1998 A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 4 Vortec V8 engine. Jun 6, 2010 · Were you able to get it timed by yourself? Mine was dead on "we thought" and ran fine but still threw code P1345 which is related to timing being off. The timing on stock 396, 402, 427 and 454 engines is 32-34 degrees total advance at 3500 rpm. This later version of the engine is the L19 and features electronic fuel injection (EFI). The camshaft timing mark should be at 6:00 and the crankshaft gear timing mark should be at 12:00. Timing Adjustment, OBD1, ALDL, WinALDL, Win ALDL May 22, 2008 · For your 1999 Chevy 3500 454 7. Chevrolet’s 7. 4 year 1998. I have a timing light. It adds the timing in this table. I did not try to unscrew the cap because it has a bar code seal on the back of it, which I'm guessing is a warning for tampering. Jul 4, 2000 · What I want to know is how to set and adjust the ignition timing once every thing is ready. $3. Over 6,000 Automotive Torque Specs. Changed wires and plugs. This 454HO long block specification sheet should be used in conjunction with the 454 short block specification sheet, GM part number 19172101. 3L PSD. * If crankshaft, crankshaft position sensor, engine, Powertrain Jul 5, 2016 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board 99 Vortec 454 Timing Issues Web 67-72chevytrucks. Crankshaft Position (CKP) Sensor Variation Learn Procedure 1) Procedure must be performed if any of the following have been done or exist: * EEPROM was reprogrammed. 400 in. company. 1996 Full Size Pick Up Ignition System No-Start Diagnostic Manual. Let´s assume I aim for maximum advance at around 3. Apr 17, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Oct 24, 2004 · Incorrect spark timing can compound either of these problems, but generally doesn't cause them alone. 4L L29 If you have the NEW BODY STYLE You could have a metal front cover but then you will not have a 454 7. Connect the timing light power leads according to manufacturer’s instructions. Most stock Corvette V-8 engines will produce peak torque and power with a total Jan 17, 2024 · Vehicles That Use a V8 7. Dec 25, 2015 · What is Total Timing. cap. Apr 9, 2014 · Tim, Welcome to the FMCA forum. Start the engine, and aim the timing light at the timing mark. I have a 454 . Jun 4, 2018 · Diagnosing an engine miss on the 91 C3500 GMC with the 454 TBI 7. The high-performance versions are variation learn procedure must be performed using proper procedure. This massive displacement allows the engine to generate an impressive amount of power and torque. Nov 7, 2016 · The Vortec 5. Oct 2, 2022 · In 1996, Chevrolet released their 7. 60 valve lift. 480 intake / . At no load cruise, high vacuum level, 36 total and 12 vacuum, 48 overall, depending on the engine setup, NOY a problem, but it should be stable. Don't forget to unplug the timing plug near the distributer. Nov 6, 2020 · Hello there. After cooled down, start back up and set idle mixture and The GM TBI (Throttle Body Injection) system uses a pair of low pressure fuel injectors mounted above the throttle body opening. 4 liters on a 1997 Chevy G3500. It’s likely that our static ignition timing at the crankshaft at idle may not be the desired 10 degrees BTDC. siteJoin our mailing list for Oct 5, 2020 · If you change the timing chain out to an aftermarket unit YOU WILL CHANGE CAM TIMING expect the engine to perform a little different. THM 400 and 3. Jun 5, 2004 · I HAD MY 454 GM 7. Views: The following specs apply to: Gen IV, Big Block Chevy Main Cap Bolt (396-454, 4-Bolt, Inner and Outer) 110 ft. Other software can do it to, but you stated you will be using HP anyway. " Dec 4, 2007 · Get it fired, set timing right away with a timing light, well advanced, about 20 degrees. Let cool completely down. Check the timing mark first before setting timing, using both plugs to check the timing before proceeding. Cylinder Heads In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Thanks May 15, 2017 · When I broke down my gen6 crate 454 a few years ago for rod bearings,I noticed the chain(new motor was only at 2500 miles)that the factory gm timing chain seemed sloppy,not tight. 3, HEI-Ignition System / and the (EDI) Enhanced Distrbutor Ignition System, hte one I have is the (EDI) Dist. Get it warm again and retest. if you are having trouble with the starter make sure you have the battery grounded real well, alot of times that's what it is. The powerplant Jun 13, 2020 · Sounds like you have a dial backlight. You will need the HPTuners to adjust your timing baseline, it's actually called cam offset for that vehicle. These engines, started there life in the 1950s with the first ones being a 283 CI engine, The same basic engine block. Aug 31, 2021 · Every time I drop a distributor into a motor I always get the same questions and comments. 7 L 4L60E NV246 ARB '07 K1500 Suburban LT 5. Chevrolet Performance Aug 24, 2005 · Can anyone provide the timing angle for the 2000, 2001 454 MPI at the following: idle (700), 2000, 3000, 4000 RPM. (40 N. Click Here! 3/8 Connecting Rod Bolt: Engine Oil: 50 ft-lbs. Jun 27, 2007 · i always like to run as much initial timing as possible. 1998 Full Size Pick Up Ignition System No-Start Diagnostic Manual. 030 bored, compr. So I replaced it in the rebuild with a brand new cloyes unit,and it had the same exact amount of slop in it. What Causes the P1345 Engine Code? The crankshaft and camshaft position sensor both work in conjunction with the ECM to control engine timing. To keep it easy you could simply dial in couple deg more timing going from 16/36 to 18/38 and if the motor responds well to the aditonal timing (which it should) your good to go. ther is a one wire plug that is brown with a black stripe u need to un plug befor seting the timing with a timing light . You need to get a timing tape to put on your balancer so you can rev the engine and set your timing while it's at full advance. I know your supposed to disconnect some wire, need to know where the wire is at. Didnt know know if i had to disconnect battery after i had set timing to reset computer or what. Check oil pressure. 483 exhaust, duration @ . 47c compressed volume and . Mechanic's Assistant: Do you know your ignition timing number? Dec 21, 2023 · 2005 Cadillac Escalade ESV 6. 0L engine 99-2000. With the timing tape in place, your vacuum advance plugged off, you can rev the engine up to 3000-4000 rpm and read which mark on the timing tape lines up with 0-mark on the timing Mar 28, 2007 · '98 K1500 Suburban LS 5. how do you set it correctly? Repeat the procedure in order to achieve proper alignment. ive pulled the front cover and the timing marks are Jan 30, 2024 · The 1998 Chevy 454 engine is a powerful and reliable V8 engine that was commonly used in heavy-duty trucks and recreational vehicles. May 17, 2007 · camshaft bolts (finger tight for now). The 454 has SFI ignition. Play with the dial and watch that timing mark go to zero. Jun 3, 2008 · Engine is a 94 Mercruiser 305 Chevy with a Edelbrock 1409 Carb and Alpha 1 Gen 2 drive with 1. 4 liters. Apr 29, 2009 · Hello. 4L/454 Timing Pointers and get Free Shipping on Orders Over $109 at Summit Racing! Timing Pointer, Aluminum, Black, Chevy, Big Block, 6. 0 AWD 152K miles Previously Owned Suburbans; 1999 GMC 2500 Suburban 1997 1500 5. 4L 454 engine has powered many Chevy and GM vehicles, from classic 2-door muscle cars like the Caprice and Chevelle to more modern heavy-duty work trucks such as the Sierra 3500 and TopKick. 7L TBI Timing procedures? (Topic#183408) fishngame1 Member Posts: 33 Loc: Colorado Rocky Mountains Reg: 12-26-07 Jan 16, 2009 · We're working on a Mark VI (6) 454 that's getting a 6:71 supercharger setup. I have a newly built 454 in my 69 Firebird with an HEI and Mech. Damn computer controlled timing. No ping and starts good hot tells you you're at max initial timing for your motor. Our take. i think the timing is set at 4 degres on the timing Find CHEVROLET 7. without knowing anything about the motor i'd say a rough guess would be 14* initial with around 20* of mechanical advance for a total of 34* should be a safe place to start with. Timed it using the scantool and the light was off immediately. ive put the distributer in myself at least a dozen times, both forward and back a tooth from the hotstamped 8 on the housing at tdc. I wanted the get something I could work on, so I picked up this 71 nova with a 454. Feb 17, 2008 · OK here goes, I have a 1999 Chevy motorhome with the vortex 454 and I want to check / set ignition timing. Part Number: CLO-9-231 4. *Bus 2, 99 7. 3 L "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays. If not, something is up. Jan 30, 2024 · The 1975 Chevy 454 engine is a remarkable piece of automotive engineering that continues to captivate car enthusiasts. Torque distributor hold down bolt to 30 lb-ft (40 Nm). 7L 4x4 6" lift 35" tires Big-block Chevy timing is pretty well standardized unless major modification have been done. Sep 22, 2008 · One, either once the grove and pointer are aligned via your timing light you are at the correct timing, or two - when lined up with your timing light you are at 0 degrees timing etc. 0 comp & cam your running i bet it could benefit from more timing. 4L 454 Engine. The factory cover is a cast aluminum piece that leaves no room for a double roller timing set. You could also play it by ear when rotating the dizzy slightly - which position gives you the smoothest idle and also which position gives you a one-click starting. In this episode, I replace the distributor in my k3500 with the 454 big blockMERCH!!! https://days-of-pain-and-victory. Reactions: jarzyboy22 , truckr65 , buickbrad and 1 other person Timing Chain and Gears, True Roller, Double Roller, Steel Sprockets, Chevy, Big Block, Set. Then you can play with it from there,modified big blocks like as much as 38+ degrees total timing. Make sure you don't have leaks and watch the operating temperature. The starter turned over as to start the engine but the engine would not fire up and none of the gauges on the dash would move. He had to replace the distributor because the tabs broke when reolacing the cap. Not even on the timing mark!!! May 11, 2008 · I have a 95 chevy S-10 4. One needs to remover the Cap and the rotor to get a good look at at things, just be real careful not to pull off any of the plug wires if your not real familiar with the firing order of the cap connections. It was rebuilt in the mid 90s, but no major performance parts were added. Engine wouldn't start, backfired through carb about every third revolution. Nov 16, 2010 · Chevy Mechanic: Dave Nova, Chevrolet Technician replied 13 years ago By jumpering power straight to the fuel pump, you are not taking the control module out of the loop, the control module still has to pulse the injectors and help to time the spark. Shine the timing light at the harmonic balancer timing mark on the driver's side of the engine. 25 in Main Caps 396-454 (4 bolt) Inner and Outer bolts. 7L) 400 Chevy The firing order works for the following Big Block Chevy Engines - 366 Chevy 396 Chevy 402 Chevy (Sometimes referred to as a 396) 427 Chevy 454 Chevy 502 Chevy Oct 11, 2010 · Im new to the site, just got back from afghanistan a few months ago. MY QUESTION IS WHEN NUMBER NO THE ENGINE CRANK AM I LOOKING FOR IS IT [ 0 ]thanks Jan 22, 2012 · 454 big block timing cap confusion continue yes, its a 1999 gmc topkick total nightmare. It sucks. Also for: 502 magnum. The crank sprocket is difficult to see … as it’s behind a crank trigger. Apr 16, 2020 · It’s important that the engine be idling at its warm-idle rpm. It would fire up and Iidle great but Jan 30, 2024 · The 1974 Chevy 454 engine is a V8 engine that belongs to the Big Block engine family. 7 liter, the scanner shows 23 degrees, I had just replaced the intake manifold gaskets. 3, 4. Torque distributor hold down bolt to 30 lb. Run for 20 minutes. 200 domed pistons, pistons . How to easily set your own timing Jun 26, 2012 · SOURCE: Need timing marks for 93 chevy 454 Under the hood on the emissions decal should say what degre the timing should be set at. You hook up a medium to high end scanner (one that is capable of reading the cam retard parameter. When we start the car and put the timing light on it, the timing mark ends up on the other side of the water pump @ about 25-30 degrees retarded! Aug 24, 2022 · Get The Right BBC Engine Specs With JEGS. 4L/454 Chevy big block Mark IV Timing Chain and Gear Sets and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Aug 20, 2009 · The distributer was replaced recently and its had the 1345 code and a knock sensor code continually come up. Oct 18, 2018 · The only serious issues I see is that the 98 454 has a 4 tooth reluctor wheel, timing cover, crank sensor and a specific distributor which you will need. Customer: how to adjust timing on a vortec 7. 6:1 compression ratio) Is this quench . Plug numbering Left (Drivers side) 1,3,5 and 7, Right side 2,4,6, and 8 Jun 20, 2018 · The Thunderbolt IV does not have a base timing mode. 4 Start the engine. 99 USD All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor). This gives me 26° to play with the mechanical advance curve with the springs / weights in the HEI. 7 Vortec however, engine timing can require manually adjustment when it gets out of spec, and poor timing is the main cause of the P1345 engine code. Jan 5, 2010 · you can NOT run timing advance at the distributor on a computer controlled L31 engine, like you could in older engines. Cam retard angle setting at 0 +/- 2 degrees with engine at operating temp and idle held at ~1200rpm. With that number you'll likely need to limit the mechanical timing in the dizzy. Now, rev the motor up until it stops advancing with no vacuum hooked up to the distributor. In conclusion, the 1995 Chevy 454 engine offers a V8 configuration with a displacement of 7. 10. You watch the timing pointer go right off the timing scale The base timing is for starting and limp home mode. Are you trying to nail down the right torque specs for a big block Chevy engine? JEGS can help. Jul 27, 2010 · I spun a rod bearing and ruined the old crank and ended up with a balanced Scat kit. Dec 31, 2007 · Hello everyone, I have a problem with the 468 I just fired up for the first time last weekend. The timing should be 0° TDC (454 engines – 4° BTDC) Oct 2, 2015 · After attending the Richmond Nascar race when I tried to start my 1998 Winnebago Adventurer with Chevy 454. And to do i need to set timing to 0 degrees. I can assure you a 454 needs 32 to 34 degrees of total timing. ft. A ProGear PG4149ST Timing set will put cam back at 0* (GM #12552296) camshaft lift . GM 7. Dec 21, 2009 · Pre-workhorse 454 engine needs help: DaveFL: Workhorse and Chevrolet Chassis Motorhome Forum: 19: 01-21-2010 07:48 AM: Need advice looking to purchase my first diesel: tazmaniac: Class A Motorhome Discussions: 11: 09-14-2009 03:48 PM: Tuning and timing a 454 Chevy: AeroAtom: MH-General Discussions & Problems: 11: 01-07-2008 06:41 PM: Need Adjusting the timing on the 1990 GMC K1500 GMT400 May 21, 2019 · Have 1995 Chevy 454, and you still use the #1 wire for the timing light. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. you need to set the distributor at 0* +- 2* for proper operation, you can change the timing in the PCM with a tune if you have the hardware/software to do so May 4, 2023 · The Chevy big block is also popular in the 1990-1993 Chevy 454 SS truck. I need to make sure that I have the right plug (the one that is installed after the stock one is removed to take the computer advance out) for the distributor. I set the timing for highest manifold vacuum; the dang thing ran perfect. There were 3 different variations of the 454 that came onto the drawing board at GM Mar 22, 2007 · An easy way to set timing is to set the total timing at approximately 34-36 degree at around 3000 RPM,then let the initial timing be whatever it falls at. Jan 21, 2014 · Regardless, you should be able to run the engine and shine the timing light on the tab and see the timing mark on the damper. Raised Camshafts, Steel, Big Block, Chevy, Natural, Each Part Number: JES-CVR-32511 Not Yet Reviewed Jun 5, 2017 · Let´s say I have (vacuum advance unplugged) an initial timing of 10° BTDC at idle and set the HEI mechanical advance to stop at 36° BTDC. Though it had a relatively short production span of only Dec 17, 2010 · I'm pretty sure it is the same procedure as my '98 5. Overall, the firing order for the 7. Nov 19, 2011 · This procedure works better with two people to set the distributor. Sep 7, 2006 · Chevy 454, 0. 83 out of 5 stars Put the timing light away; it's useless to you on a Vortec. If it must be changed, merely loosen the hold-down nut and adjust the distributor until the initial timing on the crankshaft is at the desired timing figure. It seems that it was quite advanced. Well I finally got a chance to get in the boat last night on the trailer and check the timing. 3 V6, I recently replaced the motor for a remanufactured motor, I noticed that chevrolet offered to different versions of distributors for the V6 model 4. 425 horse power, 510 / 540 Hydraulic Roller Cam, forged steel crank. It still starts pretty easy too, unless it is very hot. Jul 4, 2014 · Chevy timing 1997 454 out of time. " I have an 8. Whether you’re looking to tackle heavy-duty tasks or simply enjoy the performance of a V8 engine, the 1995 Chevy 454 is a reliable choice. If this procedure is missed by even one tooth, engine damage can result. This feature applies to many GM vehicles that use 4. 5 x 11 WHITE 16 Mar 1, 2010 · 8. the timing is refusing to move off of the 20-28 degree area, regardless of moving the distributor a tooth either way. How do you know where to drop it in? How do you set the initial Big Block Chevy Torque Specs. To answer some questions the 454 HO is at the bottom of the Chevy Performance Parts performence engine offerings. 2L. We’ve had great success with COMP Cams assembly lube and it has become a staple in the powerTV garage. 4L-454ci-V8-MARK-IV Engine Torque Specs. It is distantly related to the 454 LS6 V8 that Chevy put in their famous 1970 Chevelle SS — hence the 454 name. 4 L29 engine you would be using 12561062 which is a plastic front cover 97-2000 OLD BODY STYLE Engine PN#12491355 7. Start by checking the vacuum advance unit mounted on the distributor. But most of the time I get around 14 degrees timing at best on the stock timing map. Nov 10, 2023 · On the 5. 4L big blocks made their way back around in the mid to late 1990’s in the form of the Vortec 7400. Nov 26, 2005 · *Currently driving an "Canadian Camo" Snow White 2001 5. 005 below deck, 049 heads milled to 119cc's, ROL head gaskets with 9. I was having a slight bog after my 4bbl upgrade only on Take off, so I was told to check/advance the timing. 454 MAGNUM engine pdf manual download. 3-liter V6, and 5. I removed the old edelbrock 7810 timing set thinking I'd reuse it (about 800 miles and 10 race nights) but lost the crank gear somewhere. Customer: Can I set the static/initial timing on a 1998 Chevrolet 454/7. Aug 15, 2012 · or you need a dial-back timing light. Checking the spark plugs and wires to see what the issue could be. I checked the initial timing with no vacuum advance, car at idle, warmed up, and it was like 22 to 24 degrees BTDC. Sep 25, 2023 · Chevy Suburban; Chevy Express; The L21 version also came with some vehicles like the Chevy Motorhome or the GMC TopKick, so the engine was also used in a few other models except for Chevy. Mar 19, 2016 · If CASE has not been learned, check for the presence of other power train codes. I have set timing on a cobbeled together small block truck engine. Oct 7, 2021 · No timing light setting possible. Ok. Apr 8, 2019 · Checking spark plugs and ignition timing on the 454 SS. 119 intake centerline If you want it exact, you'll need a scanner and rotate it CW or CCW until the desired timing advance is shown on the scanner. * If Diagnostic Trouble Code (DTC) P1336 exists. I believe the ECM controller is at fault. This is the second time I've come across this, the first time was a solid roller setup where I used the Cloyes 2 piece timing cover and grafted the nose of a Mark IV oil pan View and Download MerCruiser 454 MAGNUM manual online. Thank you for choosing Chevrolet Performance Parts as your high performance source. this seems to be the hardest part of the procedure). everything has been torqued to specs and new bearings, rings, gaskets throughout and rebuilt heads. 7. Never let it go under 1800 RPM's. anyways. 044" aceptable? Aug 15, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright We would like to show you a description here but the site won’t allow us. Checking the timing on a 1977 Chevrolet 454 motor Oct 5, 2006 · I also have a 454 Big Block LS-6 in my car with a fairly big Comp solid roller cam and I use a MSD distributor. . Aug 26, 2011 · Hi gents. Mar 22, 2003 · It wouldn't. It features a displacement of 454 cubic inches, which is equivalent to 7. No1 at tdc timing mark at 0 onthe compressiin stroke. Secondary, Quick Fuel carb and everything new. Total timing is the amount of advance added by the distributor combined with initial timing. 7. I had my son's '90 454SS set at 8*. If the base is set at 4* and the table says 22* then the total timing is 26*. My OTC only shows real time advance, and does not support Cam Retard Offset monitoring. all the manual says "Special timing procedure Jan 10, 2022 · The EST connector for setting timing has more than one location, depending on model-year. Come join the discussion about restorations Nov 12, 2020 · Depending on engine specs, cam timing, compression ratio, I'd like to see IDLE timing of 20 to 24 (initial and full manifold vacuum timing), and total (initial and mechanical) of 36 or so. The line on the balancer or pulley will line up at the timing mark. Put your timing light on it, read it and then pull your timing back 2 degrees. With RPM's held at 1,000 or more, the cam retard must read within +/- 2 degrees of zero. Read the number on the timing plate adjacent to the timing mark on the balancer. Warning!!! If you are using ARP bolts, you MUST use their specs. Vary the idle speed slightly. All the fuses under the dash test out OK. Username Post: 91 5. You need a scanning OBD2 code reader. 4l. The oil capacity of the 1991 Chevy 454 engine is 5 quarts, and it is important to adhere to the recommended oil change intervals mentioned earlier. Let’s take a closer look at the engine configuration and specifications. Edelbrock Performer RPM Intake, Holley 4150DP-750CFM mech. That retarded base timing results in power loss/poor throttle responce/reduced fuel mileage all when the motor is running below the rpm where full total adv is all in and also a hotter running Jan 20, 2024 · To keep the engine running smoothly, it is recommended to use regular unleaded fuel. 8 or a 6. I bought it last year, and right now it Jan 29, 2012 · Its got a 350 TBI and I had replaced the intake on it and now i just need to set timing. ratio 10. You adjust the distributor until you get this. In conclusion, the 1991 Chevy 454 engine was a robust V8 engine with a displacement of 7. Ground the purple/white wire and the timing will steady out so you can set it properly. 05 needing to run a lot of timing like 20+ base and or 38-40 total to a 454-502 with very mild cam at say 220 deg dur @ . It was primarily used in Chevrolet trucks and high-performance muscle cars during the 1970s. Search Car Torque Specifications by Engine or Model Jan 22, 2006 · The #1 piston is at the top of the compression stroke; the timing mark is on the pointer at about 2 degrees advanced; we adjusted the distributor and set the rotor arm right at the #1 contact. If the later just use a timing light that is adjustable at the light. We have a great selection of engines and parts in stock, such as the Blueprint Crate Engines Big Block Chevy (496ci 575HP / 600TQ) or ATK HP Crate Engines Big Block Chevy (489ci / 565HP / 595TQ). This 454HO long block specification sheet should be used in conjunction with the 454 short block specification sheet, GM part number 19172101. Jul 5, 2010 · Here is the stock L29 Timing Map (the second map below is the PE mode (aka, Powervalve open timing adder to the main table). 3/8 in the wire. 4 engine. Set the timing desired on the light then line-up the mark/pointer. Good old 454's. /Comp XE274 cam/#772 truck headed 454 w/HEI, that runs best at about 39*/40* timing When 39* total timing = no pinging, lower engine temperature, & more horsepower, then I use whatever works best. The way the ECM handles timing is it reads from a table with several variables. I didn't care for my Crane solid 134781 cam so I switched to a Lunati 60205. 7/16 Connecting Rod Bolt: Engine Oil: 70 ft-lbs. Chevy 7. Dec 15, 2021 · The timing cover seals aren't under any static oil pressure, just the dynamic force of oil being flung off the timing chain, sprockets, and the reluctor wheel. Aim timing light at timing tab and recheck location of timing mark. Current timing measurements indicate a change from 26 deg at 2500 RPM down to 14 deg at 3600 RPM. m). to/2ETEdE7Buy inexpensive timing light: http://amzn. Jul 1, 2010 · Next, apply a small amount of assembly lube to both the valve stem tips and the rocker arm’s pushrod seats. Its V8 configuration, impressive power output, and durable design make it a sought-after engine for various applications. 4. Jan 16, 2024 · 1978 Chevy Truck 454 Engine Specs Engine Configuration. One way to tell is just put a timing light on it, if it is a Thunderbolt V and not in base timing mode, the timing will be jumping all over the place - this is the advance and knock sensor at work. The timing map is based on this procedure. Jan 15, 2024 · The 1973 Chevy 454 engine is a V8 engine that belongs to the Big-Block engine family. So, I took it apart (early last year). 7L Index of Articles. Find CHEVROLET 7. 7-liter and other V8 motors, and it is taken directly from our digital online manual 24065 for the 1988-98 Chevrolet and GMC C/K 1500/2500/3500 pickup trucks (including 1999-2000 C/K Classics), Chevy Tahoe, Blazer, and Suburban, and GMC Yukon, Yukon Denali, and May 27, 2012 · Not bad at all for an inital timing setup that should run well as is but with ppheads ,only 9. Dont put too much faith Aug 30, 2015 · If you have a module giving you 24* of advance and you add the 8* initial you should have a total of 32*. 65 Gears. u can usually find that under the glove box or behind wher the fuel pump relay is . You align the 0 mark on the tape with the groove in the balancer, and it wraps around the outside. Repeat Step 8 until timing is correct. Nov 28, 2016 · I printed out 69427 and Resdoggie's recommendations to try out their procedures to fine tune this engine. Thank you for choosing Chevrolet Performance Parts as your high-performance source. Part Number: SUM-G6610R-9 4. Make sure that the camshaft gear timing mark aligns with the proper crankshaft gear timing mark. 3L, 5. Remember to unhook the vacuum advance. Cam sprocket has a timing dot on it, just like normal. Engine Oil: 110 ft-lbs. This engine offered impressive performance and durability, making it a popular choice among enthusiasts and professionals alike. 050" 204° intake / 209° exhaust, LSA 118. 05 to a real hotsetup 496 or 540 with some having aftermarket AL perf heads etc all being diff animals. The description you were given was how to set the 'base' timing, the mechanical reference that the 'puter uses to determine how much advance to input. I presume you intend to replace it when you replace the timing cover. Jan 23, 2018 · GM 4. Silverton Owners Club 8. He went through and cold timed it likebyou normally would. 9. This is for an engine with stock camshaft, heads, stroke, and a compression ratio of 10:1. This engine is known for its massive size and exceptional power output. Chevrolet Performance Parts is committed to providing Jun 16, 2008 · Re: Cam Timing Chain – ’99 Vortec 454 Yeah, the old timing set is the one I’m trying to put on. 7L (350s) are the last of the original Chevy generation 1 small block engines. It's a 74 block out of I believe an old impala wagon. I have rebuilt many chevy engines in my ten year career as a mechanic, but I cannot figure out what is going on with this one. Turn off all of the accessories. The hydraulic parking brake would not release. 7L Chevy Express. 19172101 SHEET 3 of 13 ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8. 454 (19433375) Short Block Specifications REV 07MR23 PART No. If you adjust it any other way, there is no baseline. 200 RPM and the engine runs well, no pinging etc. This requires using the #5 or #8 plug wire to trigger the time light. 4-liter big block V8 is the same as for other V8s that Chevy made at that time, so we hope to have helped clear Jul 26, 2015 · Advance your timing until it pings or is hard to start. its showing 22-24 degrees positves at 1000 and after rev it up to 4000 rpm. My '88 K1500 has the wire sort-of hidden behind a plastic cover at the right-rear of the engine compartment--near the A/C and heater-core area. Jun 20, 2010 · TBI setups pre-96 were OBD I and were some of the first GM's w/ the computer controlling the timing. 039 thick (I get just under 9. Buy Distributor Wrench: http://amzn. Rebuilt the distributor (HEI). If any exist, correct the problem, then repeat this procedure. Whether the seals capture the oil or not won't affect how much showers the sensor. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body 6 days ago · Timing Cover, 2-Piece, Adjustable Cam Button, Aluminum, Natural, Chevy Big Block Mark IV, Non-Factory Roller, Each. I know that idle timing is 8 degrees btdc. The car seem sto idle well and starts off driving fine, but when I try to speed up it bogs out and back fires. The 1978 Chevy Truck came equipped with a powerful 454 cubic inch V8 engine, which was one of the largest and most potent engines of its time. I have a 454 big block with a few modifications in my 75 K5 and was wondering what proper timing should be. Valve Adjustment Procedure for Small and Big Block Chevy After the engine has been thoroughly warmed up the valves may be adjusted with the engine shut off as follows: With engine in position to fire Number 1 cylinder the following valves may be adjusted: Exhaust 1-3-4-8 Intake 1-2-5-7 Timing Covers, External Dust Cover, 1-piece, No Logo, for Standard and Plus 0. -lbs. It was part of Chevy’s penultimate generation of their big block series, and it is sometimes called the 454 Vortec. And see if the degrees on the dial back agrees with what the timing pointer was saying previously. That is why you need to disconnect the timing connector, adjust the timing to spec(4 degrees on this aplication), reconnectt he connector and let the ecm take over. 2:1 comp. The damper TDC mark was nowhere to be found. Then adjust the distributor until cam retard is between -2 and +2 degrees. 231/239, 0. Dec 28, 2015 · What is the ignition timing on a 1999 Chev 34 ton Suburban 5. Some earlier Chevy's required a harness to be disconnected or a wire to be grounded but can't find any info on this year. I suggest a timing tape. You need a scan tool that can read the "cam retard" figure. Can't find any specs on it in the books I have nor online so far. 54 out of 5 stars Timing Covers, External Dust Cover, 1-piece, No Logo, for Standard and Plus 0. 4L ENGINE REBUILT LAST WEEK,THE ENGINE STARTS FINE AND IDLES GOOD BUT I NEED TO SET THE TIMING. The initial timing should be 4 degrees before top dead center (BTDC). May 4, 2009 · Now when mans perf cams like 18 deg base timing thats leaving base timing 7 deg retarded from where it should really be which is substantially retartded. Oct 4, 2006 · I set the timing by the seat of my pants and test drove it several times until I got what seemed to be the best performance out of it. Typically this engine is lame over 4600 rpm (probably weak valve springs), so I rarely see over that. 7L 4x4 3" lift 35" tires 1990 1500 5. Believe the setting is 4 degrees BTDC. I had mine hooked to a scantool and it was 18 degrees off. 4L/8. Motor only had 30k on it, and I’m comfortable using the factory set. Background Was running well and one night driving home from the lake it back fired twice and had to be towed home. In the process of trouble shooting found no spark at times. 4 K3500, without a scan tool? My OTC only shows real time advance, and does not support Cam Retard Offset monitoring. 0L, 5. Guy GMCMI Aug 28, 2019 · My question is, once I remove and drop the distributor back in, is the crankshaft relearn procedure going to have to happen no matter what once the distributor is pulled - even with TDC at 0 degrees? And if so does this year truck use a OBDII scanner function or a timing light scan tool to set timing; I've heard conflicting reports. i've just finished a complete removal and rebuild, its all back in, and i'm having trouble even getting spark, compression is only 45 lbs. Follow my Instagram: dieseldog_1988 Tags: 454 SS, c1500, big block, TBI, vlog, ignition timing, obs Chevy, Silverado. com The firing order works for the following Small Block Chevy Engines - 283 Chevy 302 Chevy 305 Chevy 307 Chevy 327 Chevy 350 Chevy (yes the 5. 08 rearend. Any suggestions Apr 5, 2014 · So my dad has replaced everything on his 99 burb with 7. The timing chain appears to be snug and tight on one side and has some - Answered by a verified GM Mechanic Jul 2, 2013 · I would'nt advise anyone, "to keep advancing the timing until you finally hear it pinging. In the manual I've been reading, there is a step that mentions that the ignition can not be timed. 060 over with . to/2CeeVhmSorry about the fluctuating audio, either the cold or the w Jan 6, 2005 · 454 Timing. Enter new Cloyes 93110. On the older (pre-Vortec, TBI) engines, you would disconnect a wire to cause the computer to quit controlling the timing so that you could adjust the base timing mechanically by turning the distributor and watching the balancer mark with a timing light. only runs in the one spot but has -34 cam retard. 4, that i just finished rebuilding. Aug 5, 2011 · Without doing that you will get guys that dont tell ya thier setup that may be a 396 with 255 deg dur @ . Maybe depending on engine family. Slowly rotate the distributor clockwise or counterclockwise to adjust the timing to specified degrees. NOTE: If the Crankshaft Variation Relearn is not accessible through your scanner (some truck applications 1998 & later), perform the relearn in the following manner: 1. I replaced chain and both gears with double roller chain and gears. Setting the timing on a small block Chevrolet or GM TBI engine. I am assuming it is because I am losing spark or timing is off. Then just let it be where ever it ends up being Dec 4, 2003 · !978 Chevy pickup 454, The timing gear was plastic and sheared 3/4 of the gears. The price was right at $6700 for the long block. What can cause backfiring that's related to timing is bad plugs, cap, rotor, wires, incorrect dwell setting (for those engines with a points type ignition) or moisture in the dist. 0-liter, 5. The best combo that I have found is 16-18 degrees initial timing,the heaviest springs,the bushing that allows the least amount of advance,and no vacuum advance,and this gives me a total timing of 36-38 degrees. secondaries The timing will generally always read a good amount of advance while under the PCM's control. All sensors are normal. the timing advance is completely computer controlled. 4L engine, you'll have a 5. Here’s a full list of vehicles that came standard with or offered a Chevy 454 big-block engine: Feb 13, 2012 · Engine is 454 7. ahsd pgamvv fkxge dgeixjab nvhqpyb tdne lcc mkmebr npv dgdt